CN106045336B - A kind of fiber coating apparatus - Google Patents
A kind of fiber coating apparatus Download PDFInfo
- Publication number
- CN106045336B CN106045336B CN201610688119.1A CN201610688119A CN106045336B CN 106045336 B CN106045336 B CN 106045336B CN 201610688119 A CN201610688119 A CN 201610688119A CN 106045336 B CN106045336 B CN 106045336B
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- China
- Prior art keywords
- coating
- mould
- mold
- fiber
- primary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 138
- 239000011248 coating agent Substances 0.000 title claims abstract description 137
- 239000000835 fiber Substances 0.000 title claims abstract description 36
- 238000007711 solidification Methods 0.000 claims abstract description 12
- 230000008023 solidification Effects 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000010422 painting Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 26
- 239000011347 resin Substances 0.000 abstract description 25
- 229920005989 resin Polymers 0.000 abstract description 25
- 238000010276 construction Methods 0.000 abstract description 9
- 238000012681 fiber drawing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910008051 Si-OH Inorganic materials 0.000 description 1
- 229910006358 Si—OH Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/48—Coating with two or more coatings having different compositions
- C03C25/50—Coatings containing organic materials only
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The present invention discloses a kind of fiber coating apparatus, including primary coating mold and secondary coating die, it is characterized in that, UV solidification equipments are provided between the primary coating mold and secondary coating die, and primary coating mold, UV solidification equipments and secondary coating die are along the fiber path mold that from top to bottom device is integrated.Primary coating and secondary coating are concentrated in a mold handling by fiber coating apparatus of the present invention, it effectively shortens coating and processes required path, so as to reduce the construction height of fiber drawing tower, reduce equipment construction cost, primary coating and secondary coating synchronously complete, and convenient for control coating quality, the optical fiber concentricity produced is good, resin loss is effectively reduced, production cost is reduced.
Description
Technical field
The present invention relates to optical fiber coating technical field more particularly to a kind of fiber coating apparatus.
Background technology
In the drawing production of optical fiber, optical fiber needs to carry out surface coating, coats a weight as optical fiber production
Link is wanted, the influence to finished product optical fiber quality is most important.Optical fiber coating is for protection bare fibre, improves mechanical fiber optic intensity
With resist micro-bend intensity and reduce decaying and coat polymer material layer.The main component of bare fibre is silica, it is one
Kind brittleness friable material, bending resistance is poor, poor toughness, and bare fibre boundling is at a bundle as by several, mutually
Between easily generate abrasion, cause optical fiber surface to damage and influence the transmission performance of optical fiber；When drawing optical fibers forming simultaneously, surface is deposited
In the probability very little of defect micro-crack, but such as encounter the water in air, it will hydration reaction, which occurs, makes Si-O keys be broken, and generates
Si-OH bases can cause optical fiber cracked, such as existing micro-crack itself, then so that crackle is extended, finally make fiber strength
It reduces or is broken.The method overcome is to apply a floor height molecular material on bare fibre surface to prevent hydrone and Si-O key contacts；It is naked
Optical fiber reacts with the hydrone in air generates hydroxyl, and hydroxyl is the main reason of optical fiber inherent absorption decaying, to reduce
The attenuation by absorption of optical fiber must apply the intrusion that high molecular material prevents moisture content.Coat has two layers under normal circumstances, and internal layer is low
Modulus high molecular material, referred to as primary coating；Outer layer is high-modulus high molecular material, referred to as secondary coating.The coating of optical fiber is
Applied by coating die, therefore its influence to coating quality is very big.
Existing optical fiber coating processing is to realize primary coating and secondary coating in different path positions, is once being applied
UV solidifications are also carried out after covering, the resin of the resin and primary coating that avoid secondary coating is mixed, and traditional coating adds
Tooling sets the path length of needs, to occupy more wire-drawer-tower space, wire-drawer-tower needs be arranged it is higher, therefore equipment construction at
This height, resin loss is big, coating effect is poor.
Invention content
The technical problems to be solved by the invention and the technical assignment of proposition are improved to the prior art, and one kind is provided
Fiber coating apparatus, the path length for solving fiber coating apparatus occupancy traditional in current technology is long, and construction cost is high, resin
The problem that loss is big, coating effect is poor.
In order to solve the above technical problems, the technical scheme is that：
A kind of fiber coating apparatus, including primary coating mold and secondary coating die, which is characterized in that described is primary
Be provided with UV solidification equipments between coating die and secondary coating die, and primary coating mold, UV solidification equipments with it is secondary
Coating die is along the fiber path mold that from top to bottom device is integrated.Fiber coating apparatus of the present invention is by primary coating
Processing concentrates in a mold being handled with secondary coating processing, effectively shortens tradition coating and processes required long road
Diameter reduces equipment construction cost, primary coating and secondary coating are synchronous complete so as to reduce the construction height of fiber drawing tower
At convenient for control coating quality, reduction resin loss reduces production cost.
Further, the primary coating mold includes one-step boot mould and an isolation mode, the one-step boot
Mould has vertically opened up a cavity, and has also opened up on one-step boot mould and be connected to vertically with a cavity
Once perforated channel, an isolation mode is located at the once perforated channel side of one-step boot mould, on an isolation mode
The corresponding vertical position in once perforated channel has opened up a clearance hole, and has between an isolation mode and one-step boot mould
Gap forms a fluid channel of disk-like structure, and plane is perpendicular to fiber path where a fluid channel.Optical fiber is from primary
Cavity, once perforated channel and a clearance hole pass through, and the resin for coating is located in a fluid channel, in high speed fibre
By when, resin along a fluid channel be uniformly wrapped in optical fiber surface formed coat, protection bare fibre, improve optical fiber machine
Tool intensity and anti-micro-bend intensity simultaneously reduce decaying.Vortex is generated when resin flows in a fluid channel in order to prevent, once
Fluid channel has smaller thickness, avoids the occurrence of coating unstability and forms bubble.
Further, the secondary coating die includes secondary boot mould and secondary isolation mould, the secondary boot
Mould has vertically opened up secondary cavity, and has also opened up on secondary boot mould and be connected to vertically with secondary cavity
Secondary punch channel, secondary isolation mould is located on the secondary punch channel side secondary isolation mould of secondary boot mould two
The corresponding vertical position of secondary perforation lanes has opened up secondary isolation hole, and between having between secondary isolation mould and secondary boot mould
Gap forms a secondary fluid channel of disk-like structure,.
Further, the one-step boot mould, secondary boot mould periphery be set with a diversion sleeve, secondary point
Stream set, is arranged a coating inlet being connected to a fluid channel on a diversion sleeve, second diffluence put on be arranged with it is secondary
Fluid channel connection secondary coating entrance, using a diversion sleeve, second diffluence cover so that resin enter a fluid channel,
There is uniform flow in circumferencial direction when in a secondary fluid channel, to improve coating uniformity, ensure coating quality, reduce
The out-of-roundness of fibre coating increases, and improves coating concentricity.
Further, a diversion sleeve, second diffluence set are each provided with the diversion trench of annular, a coating
Entrance is connected to by diversion trench with a fluid channel, and secondary coating entrance is connected to by diversion trench with a secondary fluid channel, ring
The diversion trench of shape makes resin first be flowed into again after circumferencial direction is uniformly distributed when entering a diversion sleeve, second diffluence covering interior
Fluid channel, a secondary fluid channel, it is ensured that resin has uniform on the circumferencial direction in a clearance hole, secondary isolation hole
Flow, improve coating quality.
Further, the primary coating mold is vertically symmetrical arranged with secondary coating die, convenient for assembly and disassembly, is improved
The efficiency of mold is replaced, safeguards, resin coated weight can be realized by replacing the mold with different pore size.
Further, it is additionally provided with attemperator on the primary coating mold and secondary coating die, ensures resin
With good mobility, to improve coating uniformity.
Further, the attemperator uses electric heater unit or circulating hot water device, simple in structure, realization side
Just, at low cost.
Further, the attemperator includes heat-insulating base, and heat-insulated cavity, heat-insulated cavity are connected on heat-insulating base
It is wrapped in the periphery of primary coating mold and secondary coating die, heat-insulating base is passed through circulating hot water into heat-insulated cavity, cycle
The temperature stability of hot water is good, it is ensured that resin has good mobility always.
Further, the temperature of the circulating hot water is 45~50 DEG C.
Compared with prior art, the invention has the advantages that：
Primary coating and secondary coating are concentrated in a mold handling by fiber coating apparatus of the present invention,
It effectively shortens coating and processes required path, so as to reduce the construction height of fiber drawing tower, reduce equipment and build
Cost, primary coating and secondary coating synchronously complete, and convenient for control coating quality, the optical fiber concentricity produced is good, effectively subtracts
Few resin loss, reduces production cost；The present invention utilizes diversion sleeve and attemperator, improves Resin Flow, and ensure
Resin flow and pressure on whole circumference direction is uniform so that resin coating pressure is more stable, and attachment is evenly；Mold it is close
Envelope property is more preferable, the problem of not having spilling and leak.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of primary coating mold；
Fig. 3 is the structural schematic diagram of secondary coating die.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of fiber coating apparatus disclosed by the embodiments of the present invention, realizes in one set of die and coats twice, effectively shorten
Optical fiber coating processes occupied path length, so as to reduce the construction height of fiber drawing tower, reduces construction cost, simultaneously
Resin loss is effectively reduced, optical fiber coating quality is improved.
As shown in Figure 1 to Figure 3, a kind of fiber coating apparatus, including primary coating mold 1 and secondary coating die 3, once
Be provided with UV solidification equipments 2 between coating die 1 and secondary coating die 3, and primary coating mold 1, UV solidification equipments 2 with
Secondary coating die 3 is along the fiber path mold that from top to bottom device is integrated.Optical fiber carries out tentatively after completing primary coating
UV cures, and prevents two kinds of resins when secondary coating from mixing, optical fiber enters secondary coating after curing by primary coating and preliminary UV
Mold carries out final UV solidifications by other UV solidification equipments again after completing secondary coating.
In the present embodiment, primary coating mold 1 includes one-step boot mould 11 and an isolation mode 12, and described once draws
Guided mode 11 has vertically opened up a cavity 13, and has also opened up on one-step boot mould 11 and be connected to a cavity 13
Once perforated channel 14 vertically, an isolation mode 12 are located at one where the once perforated channel 14 of one-step boot mould 11
Side has opened up a clearance hole 15, and a septum secundum on isolation mode 12 in 14 corresponding vertical position of once perforated channel
From a fluid channel 16 for forming disk-like structure between mould 12 and one-step boot mould 11 with gap；Secondary coating die 3 wraps
Secondary boot mould 31 and secondary isolation mould 32 are included, the secondary boot mould 31 has vertically opened up secondary cavity 33, and
And the secondary punch channel 34 vertically being connected to secondary cavity 33, secondary isolation are also opened up on secondary boot mould 31
Mould 32 is located at 34 side of secondary punch channel of secondary boot mould 31, right in secondary punch channel 34 on secondary isolation mould 32
The vertical position answered has opened up secondary isolation hole 35, and is formed with gap between secondary isolation mould 32 and secondary boot mould 31
The a secondary fluid channel 36 of disk-like structure；In the present embodiment, primary coating mold 1 and secondary coating die 3 are vertically symmetrical
Setting, it is compact-sized, it is convenient to mount and dismount, convenient for safeguarding that more mold exchange, better tightness avoid the occurrence of spilling and the situation of leakage,
Isolation mode 12 is located at the downside of one-step boot mould 11, and secondary isolation mould 32 is located at the upside of secondary boot mould 31, a septum secundum
It is UV solidification equipments 2 from the region between mould 12 and secondary isolation mould 32, and then optical fiber carries out after carrying out primary coating
UV cures, the intensity of adjusting control curing light source, and curing degree is insufficient, can influence making for the decaying of optical fiber, appearance and subsequent handling
With such as over cure, then fibre coating may being caused to degrade.
In order to improve the uniformity of coating, it is set with once in the periphery of one-step boot mould 11, secondary boot mould 31
Diversion sleeve 4, second diffluence set 5, are arranged a coating inlet 41 being connected to a fluid channel 16 on a diversion sleeve 4, and two
The secondary coating entrance 51 being connected to a secondary fluid channel 36 is set on secondary diversion sleeve 5, and a diversion sleeve 4, second diffluence set 5 are each
From the diversion trench 6 for being all provided with annular, a coating inlet 41 is connected to by diversion trench 6 with a fluid channel 16, secondary painting
Material entrance 51 is connected to by diversion trench 6 with a secondary fluid channel 36, and annular diversion trench 6 is so that resin is entering a diversion sleeve
A fluid channel 16, a secondary fluid channel 36 are first flowed into again after circumferencial direction is uniformly distributed when 4, in second diffluence set 5, it is ensured that tree
Fat has uniform flow on the circumferencial direction in a clearance hole, secondary isolation hole, improves coating uniformity.
The uniformity of coating also determined by the good fluidity of resin, therefore in primary coating mold 1 and secondary coating
Attemperator is additionally provided on mold 3, electric heater unit or circulating hot water device etc. can be used in attemperator, in the present embodiment
Attemperator uses circulating hot water device.Attemperator includes heat-insulating base 7, and heat-insulated cavity 8 is connected on heat-insulating base 7, is protected
Warm cavity 8 is wrapped in the periphery of primary coating mold 1 and secondary coating die 3, and heat-insulating base 7 is passed through into heat-insulated cavity 8 and follows
The temperature of ring hot water, circulating hot water is 45~50 DEG C so that entire fiber coating apparatus maintains temperature constant state, it is ensured that resin is in light
Flowing is smooth in fine coating unit so that a clearance hole, secondary isolation hole circumferencial direction on there is uniform flux resin, carry
Height coating uniformity.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (8)
1. a kind of fiber coating apparatus, including primary coating mold (1) and secondary coating die (3), which is characterized in that described
It is provided with UV solidification equipments (2) between primary coating mold (1) and secondary coating die (3), and primary coating mold (1),
UV solidification equipments (2) are with secondary coating die (3) along the fiber path mold that from top to bottom device is integrated, the primary painting
It includes one-step boot mould (11) and an isolation mode (12) to cover mold (1), and the one-step boot mould (11) is vertically opened
If a cavity (13), and also opened up on one-step boot mould (11) be connected to a cavity (13) vertically
Once perforated channel (14), an isolation mode (12) are located at once perforated channel (14) side of one-step boot mould (11),
A clearance hole (15) is opened up in once perforated channel (14) corresponding vertical position on isolation mode (12), and primary
A fluid channel (16) with gap formation disk-like structure between isolation mode (12) and one-step boot mould (11), described two
Secondary coating die (3) includes secondary boot mould (31) and secondary isolation mould (32), and the secondary boot mould (31) is along vertical side
To having opened up secondary cavity (33), and also opened up on secondary boot mould (31) be connected to secondary cavity (33) along vertical side
To secondary punch channel (34), secondary isolation mould (32) is located at one where the secondary punch channel (34) of secondary boot mould (31)
Side has opened up secondary isolation hole (35) on secondary isolation mould (32) in secondary punch channel (34) corresponding vertical position, and
The a secondary fluid channel (36) of disk-like structure is formed between secondary isolation mould (32) and secondary boot mould (31) with gap.
2. fiber coating apparatus according to claim 1, which is characterized in that the one-step boot mould (11) secondary draws
The periphery of guided mode (31) is set with a diversion sleeve (4), second diffluence set (5), is arranged on a diversion sleeve (4) and primary
Coating inlet (41) of fluid channel (16) connection, is arranged on second diffluence set (5) and is connected to a secondary fluid channel (36)
Secondary coating entrance (51).
3. fiber coating apparatus according to claim 2, which is characterized in that diversion sleeve (4), a second diffluence
The diversion trench (6) that (5) are each provided with annular is covered, one time coating inlet (41) passes through diversion trench (6) and a fluid channel
(16) it is connected to, secondary coating entrance (51) is connected to by diversion trench (6) with a secondary fluid channel (36).
4. fiber coating apparatus according to claim 1, which is characterized in that the primary coating mold (1) with it is secondary
Coating die (3) is vertically symmetrical arranged.
5. fiber coating apparatus according to claim 1, which is characterized in that the primary coating mold (1) and secondary
Coating die is additionally provided with attemperator on (3).
6. fiber coating apparatus according to claim 5, which is characterized in that the attemperator uses electric heater unit
Or circulating hot water device.
7. fiber coating apparatus according to claim 5, which is characterized in that the attemperator includes heat-insulating base
(7), heat-insulated cavity (8) is connected on heat-insulating base (7), heat-insulated cavity (8) is wrapped in primary coating mold (1) and secondary coating
The periphery of mold (3), heat-insulating base (7) are passed through circulating hot water into heat-insulated cavity (8).
8. fiber coating apparatus according to claim 7, which is characterized in that the temperature of the circulating hot water is 45~50
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688119.1A CN106045336B (en) | 2016-08-18 | 2016-08-18 | A kind of fiber coating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688119.1A CN106045336B (en) | 2016-08-18 | 2016-08-18 | A kind of fiber coating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106045336A CN106045336A (en) | 2016-10-26 |
| CN106045336B true CN106045336B (en) | 2018-10-30 |
Family
ID=57194796
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610688119.1A Expired - Fee Related CN106045336B (en) | 2016-08-18 | 2016-08-18 | A kind of fiber coating apparatus |
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| CN (1) | CN106045336B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083656B (en) * | 2017-12-29 | 2023-08-22 | 通鼎互联信息股份有限公司 | Nitrogen gas guiding device |
| CN108658478B (en) * | 2018-08-15 | 2023-08-25 | 湖北辰朗科技有限公司 | Optical fiber drawing coating die |
| CN109437600B (en) * | 2018-11-16 | 2023-11-21 | 法尔胜泓昇集团有限公司 | Convenient efficient fiber coating bubble removing device |
| CN109455952A (en) * | 2018-12-13 | 2019-03-12 | 南京吉隆光纤通信股份有限公司 | A kind of die assembly of optical fiber automatic coating machine |
| CN111377619B (en) * | 2018-12-28 | 2024-04-30 | 中天科技光纤有限公司 | Optical fiber coating device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533122A (en) * | 2009-04-27 | 2009-09-16 | 中天科技光纤有限公司 | Method for preparing single-film optical fiber for high-strength large-coil long submarine optical cable |
| CN102083762A (en) * | 2008-05-29 | 2011-06-01 | 康宁股份有限公司 | Method and system for producing thermoplastic coated optical fibers |
| CN102101102A (en) * | 2009-12-17 | 2011-06-22 | Ofs飞泰尔有限责任公司 | Optical fiber coating with a color concentrate having slickness additive |
-
2016
- 2016-08-18 CN CN201610688119.1A patent/CN106045336B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102083762A (en) * | 2008-05-29 | 2011-06-01 | 康宁股份有限公司 | Method and system for producing thermoplastic coated optical fibers |
| CN101533122A (en) * | 2009-04-27 | 2009-09-16 | 中天科技光纤有限公司 | Method for preparing single-film optical fiber for high-strength large-coil long submarine optical cable |
| CN102101102A (en) * | 2009-12-17 | 2011-06-22 | Ofs飞泰尔有限责任公司 | Optical fiber coating with a color concentrate having slickness additive |
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| CN106045336A (en) | 2016-10-26 |
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Effective date of registration: 20190415 Address after: 611731 No. 1577 West Avenue, Chengdu High-tech Industrial Development Zone, Sichuan Province Co-patentee after: TIANJIN FUTONG XINMAO SCIENCE & TECHNOLOGY Co.,Ltd. Patentee after: FUTONG OPTICAL FIBER AND CABLE (CHENGDU) CO.,LTD. Address before: 610097 No. 77 West Avenue, Chengdu High-tech Industrial Development Zone, Sichuan Province Patentee before: FUTONG OPTICAL FIBER AND CABLE (CHENGDU) CO.,LTD. |
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Address after: 611731 No. 1577 West Avenue, Chengdu High-tech Industrial Development Zone, Sichuan Province Patentee after: FUTONG OPTICAL FIBER AND CABLE (CHENGDU) Co.,Ltd. Patentee after: Tianjin Futong Information Technology Co.,Ltd. Address before: 611731 No. 1577 West Avenue, Chengdu High-tech Industrial Development Zone, Sichuan Province Patentee before: FUTONG OPTICAL FIBER AND CABLE (CHENGDU) Co.,Ltd. Patentee before: TIANJIN FUTONG XINMAO SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 |